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GT-4 Hoods and Rain - 6G Celicas Forums

Topic #35131 22 posts Started by Raine
I feel pretty stupid asking this, but I tried searching and couldnt find any answers. Do you guys with GT-4 hoods drive in rain, and if so, do you do anything to stop rain from pouring into the grille on top of the hood? What would need to be protected inside the bay (5sfe)? The intake quickly comes to mind in order to prevent hydrolock.
Its usually so hot under the hood the heat evaporates the rain drops falling into the vent. You won't hydrolock your car by owning a GT4 hood. The vent is about a foot to a foot and a half away from where a short ram would sit.

I will return one day.
yup, rain doesnt effect anything.

All I have in this world is my Balls and my Word and I'm not breaking em for no one,- Tony MontanaTeam 6gc 2005
same on zyclone cf hood?? or washing the car? also was wondering same thing but this answered my question i think.
GT-4 Hoods and Rain/car wash = no problem at all

This post has been edited by lagos: Mar 19, 2006 - 11:49 PM

15PSI - 30MPG - Megasquirt Tuned
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QUOTE(Raine @ Mar 20, 2006 - 11:32 AM) [snapback]410213[/snapback]
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I feel pretty stupid asking this, but I tried searching and couldnt find any answers. Do you guys with GT-4 hoods drive in rain, and if so, do you do anything to stop rain from pouring into the grille on top of the hood? What would need to be protected inside the bay (5sfe)? The intake quickly comes to mind in order to prevent hydrolock.


Good question actually. biggrin.gif From my experience with GT4 hood. I used to have a FRP sheet under the grille where some water, rain will be drained to fron of the engine. The reason this sheet is quiet improtant is it will help you avoid the water splashed too much to the dicharge, header and some area valve cover where spark plug and cable located.

If you can see the orginal GT4 hood, there will be a sheet protection under the grille like I told you.... biggrin.gif
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QUOTE(Nampetch @ Mar 20, 2006 - 11:56 AM) [snapback]410427[/snapback]
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QUOTE(Raine @ Mar 20, 2006 - 11:32 AM) [snapback]410213[/snapback]
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I feel pretty stupid asking this, but I tried searching and couldnt find any answers. Do you guys with GT-4 hoods drive in rain, and if so, do you do anything to stop rain from pouring into the grille on top of the hood? What would need to be protected inside the bay (5sfe)? The intake quickly comes to mind in order to prevent hydrolock.


Good question actually. biggrin.gif From my experience with GT4 hood. I used to have a FRP sheet under the grille where some water, rain will be drained to fron of the engine. The reason this sheet is quiet improtant is it will help you avoid the water splashed too much to the dicharge, header and some area valve cover where spark plug and cable located.

If you can see the orginal GT4 hood, there will be a sheet protection under the grille like I told you.... biggrin.gif


Yeah, I noticed that. On close-up shots of some people's hoods you can see a metal vent thing under the plastic grille. Is it a Toyota part, and if so, does anyone know the part number?
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QUOTE(Raine @ Mar 21, 2006 - 2:39 AM) [snapback]410493[/snapback]
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QUOTE(Nampetch @ Mar 20, 2006 - 11:56 AM) [snapback]410427[/snapback]
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QUOTE(Raine @ Mar 20, 2006 - 11:32 AM) [snapback]410213[/snapback]
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I feel pretty stupid asking this, but I tried searching and couldnt find any answers. Do you guys with GT-4 hoods drive in rain, and if so, do you do anything to stop rain from pouring into the grille on top of the hood? What would need to be protected inside the bay (5sfe)? The intake quickly comes to mind in order to prevent hydrolock.


Good question actually. biggrin.gif From my experience with GT4 hood. I used to have a FRP sheet under the grille where some water, rain will be drained to fron of the engine. The reason this sheet is quiet improtant is it will help you avoid the water splashed too much to the dicharge, header and some area valve cover where spark plug and cable located.

If you can see the orginal GT4 hood, there will be a sheet protection under the grille like I told you.... biggrin.gif


Yeah, I noticed that. On close-up shots of some people's hoods you can see a metal vent thing under the plastic grille. Is it a Toyota part, and if so, does anyone know the part number?


I believed it is toyota part but I am forget the partnumber...
But be aware, some part from toyota that you may think it should not cost alot could be cost alot... biggrin.gif
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QUOTE(Nampetch @ Mar 21, 2006 - 3:48 AM) [snapback]410739[/snapback]
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QUOTE(Raine @ Mar 21, 2006 - 2:39 AM) [snapback]410493[/snapback]
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QUOTE(Nampetch @ Mar 20, 2006 - 11:56 AM) [snapback]410427[/snapback]
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QUOTE(Raine @ Mar 20, 2006 - 11:32 AM) [snapback]410213[/snapback]
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I feel pretty stupid asking this, but I tried searching and couldnt find any answers. Do you guys with GT-4 hoods drive in rain, and if so, do you do anything to stop rain from pouring into the grille on top of the hood? What would need to be protected inside the bay (5sfe)? The intake quickly comes to mind in order to prevent hydrolock.


Good question actually. biggrin.gif From my experience with GT4 hood. I used to have a FRP sheet under the grille where some water, rain will be drained to fron of the engine. The reason this sheet is quiet improtant is it will help you avoid the water splashed too much to the dicharge, header and some area valve cover where spark plug and cable located.

If you can see the orginal GT4 hood, there will be a sheet protection under the grille like I told you.... biggrin.gif


Yeah, I noticed that. On close-up shots of some people's hoods you can see a metal vent thing under the plastic grille. Is it a Toyota part, and if so, does anyone know the part number?


I believed it is toyota part but I am forget the partnumber...
But be aware, some part from toyota that you may think it should not cost alot could be cost alot... biggrin.gif


its actually just a peice of plastic like material that acts as a rain gutter. It mounts to the hood via those plastic fire tab thingies.

ive seen the same thing on ebay but it was a single peice of sheet metal with vents cut into it.


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QUOTE(Nampetch @ Mar 20, 2006 - 4:56 PM) [snapback]410427[/snapback]
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If you can see the orginal GT4 hood, there will be a sheet protection under the grille like I told you.... biggrin.gif


Which is there for noise reasons and to also prevent the heat haze and steam when rain hits the manifold. This scares people a little.

I ripped it out. I want as much cooling as possible.

It rains a lot here, and I don't have a garage. No problems in the last 18 months.

JDM ST205Blitz Spec NUR Exhaust, somewhere over $1000Needing another one 18000 miles later, bloody annoying.
I also have a question similar to this. Those that have FMIC - is rain a big problem when driving?
FMIC + Rain = better cooling as the rain water will dissapate the heat off the intercooler smile.gif

but my worry would be a manifold or sumthing cracking due to cold water/ hot manifold....?
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QUOTE(playr158 @ Mar 23, 2006 - 3:52 PM) [snapback]412005[/snapback]
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FMIC + Rain = better cooling as the rain water will dissapate the heat off the intercooler smile.gif

but my worry would be a manifold or sumthing cracking due to cold water/ hot manifold....?



there is no problem with the vent. nothing will crack because of it. it causes no problems to the motor at all.

15PSI - 30MPG - Megasquirt Tuned
it wouldnt crack, inless you could get like half of the manifold to stay hot and the other half to be cooled way down, way down, this will make half of the manifld contract back to regular size with the other half expanded due to the high temp, and a crack would occour, but RAIN WILL NOT DO THIS not even forest gump's "big ol' fat rain"
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QUOTE(celicarus @ Mar 23, 2006 - 3:39 PM) [snapback]411989[/snapback]
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I also have a question similar to this. Those that have FMIC - is rain a big problem when driving?

That would suck if they did because point of having FMIC is for it to be as open as possible for maximum cooling.







ps. I havent had one of my friend yet complain about problems with there intercoolers in the rain.

All I have in this world is my Balls and my Word and I'm not breaking em for no one,- Tony MontanaTeam 6gc 2005
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QUOTE(Drocay @ Mar 24, 2006 - 9:26 AM) [snapback]412445[/snapback]
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QUOTE(celicarus @ Mar 23, 2006 - 3:39 PM) [snapback]411989[/snapback]
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I also have a question similar to this. Those that have FMIC - is rain a big problem when driving?

That would suck if they did because point of having FMIC is for it to be as open as possible for maximum cooling.







ps. I havent had one of my friend yet complain about problems with there intercoolers in the rain.

no i believe that he wanted to know that since there is not hot intercooler in there, if the rain could get to the intake and cause hydrolock, i dont think that he was asking if rain on a fmic was bad
The stock heat sheild on the GT4 exhaust manifold would also pervent water from coming into direct contact with the manifold.

I was worried about the manifold cracking too, since I have a stainless tubular manifold that sits pretty close to the vent. Just last week it snowed here, and I could here the manifold sizzling after parking the car. So I just bent up and heat shield last night and will be installing it today. No more worries.

This post has been edited by scothaniel: Mar 27, 2006 - 2:04 PM

ScottWest Michigan
why would toyota put the vent on there if it's going to cause problems,

if you're putting an aftermarket GT4 scoop on, then you might consider getting a "gutter" for yours.....

but otherwise,

as everyone else said, there's no problems
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QUOTE(lilsteeg @ Mar 23, 2006 - 4:01 PM) [snapback]412012[/snapback]
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it wouldnt crack, inless you could get like half of the manifold to stay hot and the other half to be cooled way down, way down, this will make half of the manifld contract back to regular size with the other half expanded due to the high temp, and a crack would occour, but RAIN WILL NOT DO THIS not even forest gump's "big ol' fat rain"


ya i thin you would definately have to drench your manifold in a very rapid rate to even begin to get it to crack it gets so hot that rain drops or even splashes would just evaporate. i think you would have to have water near freezing to do dmg.

I gotz 2 things my celi and a dream, the prob is commin up with the thrid one...
Hey fella i asked the same question a year ago......

i put the gutter in for the winter, i think a load of snow at -20 will be a problem !!!!!

but rain and washing is not an issue

in fact it looks damn good when you get a nice heat haze in the summer smile.gif

an a mate of mine was well impressed to see his turbo gloing after a long had drive smile.gif

Life is for living, and you don't get a second chanceTake care now !!
I do the same as popstar...gutter on in the winter....nothing in the summer....I get a bit of steam from it in the mornings if it rains during the night due to the rain making the exhaust lagging damp...Its actually made out of treated cardboard, not plastic.
No problems so far what so ever.
I'm using this wink.gif
http://cgi.ebay.com/ebaymotors/JDM-Celica-...sspagenameZWDVW

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QUOTE(popstar @ Apr 7, 2006 - 6:33 AM) [snapback]418767[/snapback]
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Hey fella i asked the same question a year ago......

i put the gutter in for the winter, i think a load of snow at -20 will be a problem !!!!!

but rain and washing is not an issue

in fact it looks damn good when you get a nice heat haze in the summer smile.gif

an a mate of mine was well impressed to see his turbo gloing after a long had drive smile.gif